Portable communications system

Details Portable communications system Portable communications system

A - Human Necessities

63

B

325/27, 2/31, 32

A63B 69/00 (2006.01) A42B 1/12 (2006.01) H04B 5/00 (2006.01) A63B 69/12 (2006.01)

Patent

CA 1274279

PORTABLE COMMUNICATIONS SYSTEM ABSTRACT OF DISCLOSURE A communication system especially for coaching swimmers comprises a hand set which the coach uses to summon up a swimmer or swimmers to be instructed by means of generated tones and a thing worn by each swimmer to. be instructed which contains electronic amplifying means and audio transducers. To water proof the electronics they are enclosed in a sealed enclosure and then in the latex of a swimming cap. Batteries used in the circuitry can be recharged without breaking the sealing by using a strong magnetic field to break through the water- proofing and drive a constant current battery charging arrangement.

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